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XSETDEVICEVALUATORS(3)   XSETDEVICEVALUATORS(3)

NAME

XSetDeviceValuators - initialize the valuators on an extension input device

SYNOPSIS

#include <X11/extensions/XInput.h>

XSetDeviceValuators( Display *display,


                     XDevice *device,


                     int *valuators,


                     int first_valuator,


                     int num_valuators);

display


       Specifies the connection to the X server.

device


       Specifies the device whose valuators are to be


       initialized.

valuators


       Specifies a pointer to an array of integer values to be


       used to initialize the device valuators.

first_valuator


       Specifies the first valuator to be set. Valuators are


       numbered beginning with zero.

num_valuators


       Specifies the number of valuators to be set.

DESCRIPTION

The XSetDeviceValuators request sets the current values of the
valuators of an input device. The valuators in the range
first_valuator to (first_valuator + num_valuators) are set to
the specified values. Valuators are numbered beginning with 0.
Not all input devices support initialization of valuator
values. If this request is made to a device that does not
support valuators initialization, a BadMatch error will occur.

If the request succeeds, a status of Success is returned. If
another client has the device grabbed, a status of
AlreadyGrabbed is returned.

XSetDeviceValuators can generate a BadLength, BadDevice,
BadMatch, or BadValue error.

DIAGNOSTICS

BadDevice


       An invalid device was specified. The specified device


       does not exist or has not been opened by this client via


       XOpenInputDevice.

BadMatch


       This error may occur if an XSetDeviceValuators request


       is made specifying a device that has no valuators and


       reports no axes of motion, or if such a request is made


       specifying a device that does not support valuator


       initialization.

BadValue


       An invalid first_valuator or num_valuators values was


       specified.
05/04/2023